spectral coil

[DONMAN]

Does any one know how I could make a spectral coil? For those who dont know ..... its an electro magnet that can attract copper and aluminum along with other odd metals that normal electromagnets dont.

[megalomania]

Would that be an eddy current electromagnet? Those just spin a powerful permanent magnet very fast in front of a conductor, like aluminum, and enable metals to be separated.

[DONMAN]

That might be it, I was looking over some technical books, and there was a reference to building one of those. I looked every where to find a schematic but couldn't find it.

[Jacks Complete]

Close, but incorrect. It is a fairly high frequency AC magnetic field, and it repels conductors. The better the conductor the harder it is repelled.

A 50Hz coil will do it. Get a transformer designed to couple the flux (a coil around a laminated block), and put a continuous copper ring over the top half of it. Now turn the power on, and they copper ring will go flying. Aluminium will less far, and so on.

How far it goes depends on both the magnetic permability and conductivity of the material, as well as the mass, etc.

Used industrially for sorting aluminium cans from the "everything else" left when the steel has been pulled out by DC magnets at the scrap yard.

[DONMAN]

I think I will just buy the tech book, if its good I will scan a page or 2 for you guys.

[nbk2000]

Would this work on metals like gold, silver, and platinum?

[DONMAN]

It just might, I dont know much about it, but once I get the book I will tell you all of its wonders.

[oxbeast]

What you are looking for is sometimes called a "Master Magnet".

I uploaded an old PDF file showing how to build one of these.

'http://rapidshare.com/files/7016416/mastermag.pdf.html'

The original page is still available at:
'http://rexresearch.com/mrmagnet/mrmagnet.htm'

Be careful building something like this, the current involved is pretty high and you are working with mains electricity.

[Fallout85]

I believe this is what is being refered to: http://www.fastmhz.com/viewtopic.php?t=58
or here: http://powerlabs.org/capexperiments.htm

It doesn't use AC but a high amp (and extremely short) pulse of DC current supplied from a capacitor bank. It is similar to the classic coilgun concept except that of course it repels the projectile rather than attracts. They can reach incredible velocity and efficiencies. Some even having the potential of causing bodily harm: http://www.amazing1.com/mass-launcher.htm. :)

[DONMAN]

Damn it, I just waisted 11 bucks on a book order.


Just think how easy it will be to collect aluminum powder with this thing. :D

[Cobalt.45]

What is bizarre is how the egg was "cooked" by the pulse. Makes a microwave look slow by comparison.

I don't see how you'd collect Al powder with a device like it, though.

How did you plan on doing it, anyway?

[DONMAN]

If you look the easy aluminum powder eggs .... I was going to apply the magnet to the side of a glass full of suspended Al powder in oil. If the magnet is powerful enough the Al powder collect where the magnet is closest.

[Fallout85]

To Cobalt: Ha well it wasnt cooked by the pulse. They were already hardboiled; the ring shooting away just shelled them. You are however very correct; it probably wouldn't be useful for collecting aluminum...but it would be fun :). I guess I was just looking for an excuse to bring up EM weaponry.

[DONMAN]

Even if I cant collect aluminum with it, there are so many more uses for it! I will start to make one once I get my 11$ book.:rolleyes:

[Deft]

If it can seperate precious metals it would have been looked at by heavy industry so they don't have to use chemical methods for separation of gold, they could just use electrical power.

But it might not be worth it on at least a large scale, so that's a place to start looking anyways.